Caian Keller.

Led the pivot from a manual logistics operation to a scalable tech platform, processing 500k+/month through my work. Built the end-to-end booking infrastructure and an AI-driven veterinary dashboard for pet safety validation. This transition enabled the company to shift from fleet management to a modern, software-first model.

I drove the product from architecture to execution, focusing on delivering the best experience for language learning through reading in context. I led the development from its early Electron-based stages to its modern web implementation, building the core engine for instant translations and pronunciation. Recently, as the project moved to open source, I architected the .olnd file specification and built the end-to-end pipeline for parsing, rendering, and cloud-syncing user progress.

Architected an e-commerce ecosystem processing 150k/month for industry leaders like WEG, Huawei and Valmont. Reduced provisioning overhead by 90% via a custom CMS and engineered high-performance QA dashboards to validate 7M+ data points for bank-integrated credit risk APIs.

A zero-dependency TypeScript library for organizing API access around typed endpoints. Built to simplify microservice-heavy applications through shared contracts, middleware, retries, cache keys, response transforms, and framework-agnostic transports, bringing a bit of the tRPC developer experience to non-tRPC stacks.

A custom DSL designed to bridge the gap between chaotic ePUB/PDF structures and clean, semantic content. Built as an open-source framework to preserve document structure and enable superior reading experiences for language learners.

A minimalist, keyboard-driven application launcher for Linux. Built with Go and the Bubble Tea TUI framework, focusing on speed and zero-dependency efficiency for tiling window manager setups.

Like the cursor you're seeing on this site? You can use it in your own React project!

A self-hosted, off-grid photo gallery for digital independence. Designed as a lightweight alternative to centralized social media, prioritizing data ownership and minimal technical overhead.

I enjoy coming up with the most over-engineered ways to check if a number is odd every April Fools'. This one turned out great. Should you use it? No! But it was a blast to build. Not gonna lie, the documentation and comments are pretty hilarious.